.container{
    width: 100%;
    height: calc(100% - 50px);

    display: flex;
    align-items: center;
    justify-content: center;

}

#screen{
    width: 400px;
    height: 200px;
    font-size: 20px;
    background-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%);    border-radius: 10px;
    

}

#match-button {
    width: 400px;
    height: 50px;
    font-size: 20px;
    background-color: orange;
    color: white;
    border-radius: 10px;
    border: none;
    outline: none;

    text-align: center;
    line-height: 50px;
    margin-top: 20px;
}

#submit:active {
    background-color: rgb(86, 52, 52);
}

.card_gobang {
    display: flex;
    align-items: center;
    justify-content: center;
}
.card_gobang h3{
    width: 150px;
    height: 40px;
    line-height: 40px;
    font-size: 24px;
    border-radius: 10px;
    border: none;
    outline: none;
    text-indent: 10px;
    margin-left: 70px;
    color: #830f0f;
    
}

.card_gobang span{
    width: 150px;
    height: 40px;
    line-height: 40px;
    font-size: 24px;
    border-radius: 10px;
    border: none;
    outline: none;
    text-indent: 10px; 
    color: #400606;

}